Improvement in scissor-sharpening attachments for sewing-machines



yNITEEV STATES PATENT OFFICE.

GEORGE OHATTAWAY, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN SCISSOR-SHARPENING ATTACHMENTS FOR SEWING-MACHINES.

specie'cation forming part of Letters Patent No. 105,777, dated July 26, 1870.

To all whom `fit may concern:

Beit known that I, GEORGE T. OHATTA- WAY, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement, being a Scissory -`Sharpening AAttachment to a Sewing-Machine; and that the following is a Vfull and exact description of the same. r

My improvement consists in having the bearings which support thel rotary stone or Sharpener adjustable with reference to a xed beveled rest for holding the scissors at the `proper angle,and in the combination of the same', so that the scissors and the grinder can always be adjusted to each other at the proper distance and angle.

The construction of my improvement is as follows: Upon a suitable plate or part of the top plate of the machine I place the two`ver tical brackets a a, (Figure l ofthe drawings,

` which isan end e1evation,) whichv are sup- -ported by the standard b, which slides back and forth in the slot cin the plate or bed d.

i Aihorizontal shaft, E. working in the brackets a a, carries at one end the rotary stone or sharpenerf, and atthe opposite end the driving-pulley g. In front of the stone or sharpener l place the iixed beveled rest h for holding the scissors at the angle required. rlhe shape ofthe beveled rest, and its position with,

regard to the sharpening-wheel, are shown in Fig. 2, which also presents an end view of the sharpening-wheel. The standard bis secured in the slot c, at any desired distance from the fixed rest, by means of the screw-nut b underneath. Fig. 3 of the drawings represents a front elevation of my improvement op- The'driving-pulley g geared to a driving- 4 spindle of the machine `by a belt, or from the bobbin-winder, and is rotated by the foot of the operator.

My improvement embraces these advantages: First, the blade of the scissors being laid upon the bevel of the fixed rest, with its edge toward the sharpening-wheel, and the Wheel put in motion, the blade is sharpened throughout at the same angle, and evenly throughout; and, secondly, as the sharpeningwheel wears away by use the wheel may be always setto the right distance and position from the fixed rest by means of the adjustable standard, slot, and' restbefore described.

I am aware that vibrating movable restbearings have been used and applied to sharpening scissors upon a sewing-machine in connection with a sharpening storie or wheel on fixed bearings. These I do not claim; but

What I claim as my invention, and for which I desire Letters Patent, is-

The slotted plate d, movable bearings a a, standard b, sharpening wheel or stone f, and fixed rest h, arranged and constructed as described.

eEo. T. GEATTAWAY.

Witnesses:

G. W. Fox, J. B. STAPLES. 

